JSFiddle - React, Tailwind, and code Playground

HTML

<div id="body">
    <h2>Hello World!</h2>
    <div class="nav">
        <ul>
            <li><a href="#">Home</a></li>
            <li><a href="#">About</a></li>
            <li><a href="#">News</a></li>
            <li><a href="#">Contact</a></li>
        </ul>
    </div>
</div>

CSS

body {
    margin: 0px;
    padding: 0px;
    background-color: #505050 ;
}

#body {
    width: 75%;
    margin: 0 auto;
    position: center;
    background-color: #C0C0C0;
    height: 100%;
}

.nav {

}
.nav ul {
    background-color: #CCCCCC;
    width: 100%;
    padding: 0;
    text-align: center;
    font-size: 0;
}

.nav li {
    list-style: none;
    font-family: Arial Black;
    padding: 0px;
    height:40px;
    width: 120px;
    line-height: 40px;
    border: none;
    font-size: 20px;
    background-color: #CCCCCC;
    display:inline-block;

}

.nav a {
    display: block;
    color: black;
    text-decoration: none;
    width: 60px;
}